"If you think the amount of directions seems challenging, keep in mind that it only takes about 20 minutes of actual work in the kitchen to make a full batch of yogurt. My yogurt ends up being about .50/quart, compared to at least $3/quart at the store, so it is definitely worth your time. Remember, every batch of yogurt will turn out differently. Sometimes your "starter" can get worn out and you will need to buy some new plain yogurt to replace it. It is very important that you use plain yogurt, because any sweetener or fruit flavor will distort the flavor of your fresh batch.